/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraSystemInstance.h
const [FNiagaraPerInstanceDIFuncInfo](API\Plugins\Niagara\FNiagaraPerInstanceDIFuncInfo) & GetPerInstanceDIFunction ( [ENiagaraSystemSimulationScript](API\Plugins\Niagara\ENiagaraSystemSimulationScript) ScriptType, int32 FuncIndex ) const